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124 Extempore Playing |
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Further, it should be remembered that every note of the chromatic scale may occur, in some connection, in every other key, and may accordingly be used in the way of modulation. For instance, C may occur as follows:
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Similarly, it is obvious that every chromatic note may occur in the key of C, therefore the note C itself may occur in every key, either as a diatonic or a chromatic tone; and this applies, of course, to all other keys.
Now, for the practical illustration, supposing at the evening service we have reached the end of the Nunc dimit-tis, and desire to follow it by a monotone, any note thought suitable may be taken and, after it has been started, so harmonized as to bring it into position as dominant or tonic of a new key: |
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In the above, at (a) the diminished 7th-chord is taken, and resolved by enharmonic change to B flat. At (b) the |
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